Device for cleaning and blowing off boilers.



J. GOFF.

DEVICE FOR CLEANING AND BLOWING OFF BOILERS, APPLICATION FILED MAR. x2, 1917.

LQ55J56, Patented Feb. 5, 1918.

2 SHEETSSHEET I.

WITNESSES ATTORNEY J. GOFFI DEVICE FOR CLEANING AND BLOWING OFF BOILERS.

APPLICATION FILED MAR. I2, 1917- Patented Feb. 5, 1918.

2 SHEETS-SHEET 2.

INVENTOR IIIL w ATTORNEY JESSE GOFF, 01F JOPLIN, MISSOURI, ASSIGNOR OF mantis.

ONEFOURTH T0 ORVILLE P. MAHOIRIEY AND ONE-FOURTH T0 WILLIAM D. GOFF, BOTH 01E JOPLIN, MISSOURI.

DEVICE FOR CLEANING AND BLOWING- OFJE' BOILERS.

To all whom it may concern:

Be it known that I, Jnssn Gorr, a citizen of the United States, residing at Joplin, in the county of Jasper and State of Missouri, have invented a new and useful Device for Cleaning and Blowing Ofi' Boilers, of which the following is a specification.

This invention relates to devices for cleaning and blowing off boilers. An object of the invention is to provide a construction which will efliciently and easily draw oil" the mud or sediment from the bottom of bollers, and the like, whereby the accumulation of scale is prevented and the interior of the boilers are kept clean, preventing buckling and burning.

Another object of the invention is to provide a construction in which the operation may be reversed whereby water may be forced through the same into the boiler washing all mud or sediment within the boiler to one end thereof, where it may be easily removed through the adjacent manhole, rendering it unnecessary to go into the boiler to scrape the mud and scale out.

Another object of the invention is to pro-.

vide a constructionwhieh will allow the removaland repair of the blow off cocks with-' out making it necessary to first reduce the pressure within the boiler or cool the same.

In particular the invention resides in pro viding a device having a plurality of openings arranged from end to end of the boiler, which openings may be closed and opened in succession.

The invention is applicable to boilers of all kinds; such as for instance, tubular boilers and fire-box boilers.

In the accompanying drawings I have illustrated one embodiment of my invention and the manner of applying the same to the specific boilers above mentioned.

In the drawings Figure l is a side elevation of a tubular boiler with parts broken away and parts in section, illustrating the application of my cleaning and blowing oft device thereto.

Fig. 2 is aside elevation of a fire-box boiler with parts broken away and parts in section illustrating the application of my invention thereto.

Fig. 3 is a sectional view of the firebox Specification of Letters Patent.

Application filed March 12, 1917.

ltatented Feb. 5, ram.

Serial in). 154,264.

showing the tering with a corresponding opening of the inner pipe.

Fig. 7 is a longitudinal sectional view of the outer pipe, showing the openings therein.

Fig. 8 is a longitudinal sectional view of the inner pipe, showing the openings therein.

Referring to Fig. 1, I have there illustrated a tubular boiler 1, provided with the usual heads 2 and 3 located at the rear and front res 'ieetively. The front head has the usual man-hole 4. Mounted within the boiler adjacent the bottom thereof is the device for cleaning and blowing oft the same. This device is indicated generally at 5, extends from one end of the boiler tothe other and is supported by the front head of the boiler, as indicated at 6 and by the rear head as indicated at 7. At the rear of the boiler the device projects outwardly through the same, as indicated at 8 and comprises adjusting devices, as will be described more fully hereinafter.

Referring to Figs. 2 and 3, I have there shown my device applied to a firebox boiler in which a water chamber surrounds the firebox at the sides. front and rear. The boiler is indicated generally at 9 and is provided with a firebox 10, which is surrounded by the water chamber 11. This chamber comprises side portions 12 and front and rear portions 13 and 14. Mounted at the bottom of each of the side portions is one of my devices, indicated at 5*. Each of these devices is supported in the front head as indicated at 6, in the rear head as indicated at 7. The adjusting devices are situated outside of the boiler at the rear as indicated at 8 As clearly illustrated in Fig. 4, each of my devices comprises an outer tube or pipe 15 closed at the front end by means of a plug 16, Fig. 7, and provided at the rear .with a threaded sleeve 17, which is adapted The opposite end of the sleeve has connected to it a. short pipe 18 which projects, as clearly shown in Figs. 1. and 2 outside of the boiler and to the rear thereof. To the rear portion of this pipe is attached a cross connection 19. The rear arm of the cross connection is provided with. a short pipe 19 having a stuffing box 20. The upper arm of the cross connection has a screw-threaded bushing 21, the lower end of which is closed by means ofa plug 22, preventing the outflow in that direction. The lower arm of the cross connection is provided with a nipple 23 constitutin a blowing off outlet and threaded into the same and to which is connected a blow-off cock 24, controlling the same.

Slidably mounted within the tube 15 and fitting the same is an inner tube 25 closed at its front end by a plug 26 and projecting .beyond the end of the stntiing box 20, as indicated at 27. Attached to the latter end of the tube 25 is a T connection 28, the outer arm of which is normally closed by means of a screw-threaded removable plug 29. The upper arm of the T connection is also plugged by means of an upstanding post 30 extending forwardly from which is a threaded bolt 31. I

Rotatably journaled within the bushing 21 is an interiorly threaded tube 32 into which the bolt 31 telescopes and with the threadsof which the threads of the bolt engage. The threaded tube 32 is provided at one end with a suitable actuating wheel 33. By rotating the wheel the inner tube will be moved longitudinally of the outer tube for apurpose which will be described more fully hereinafter.

Along the bottom of the outer tube 15 is a series of spaced openings 34, 35, 36 and 37. Also arranged alongthe bottom of the in ner tube 25 is a corresponding series of spaced openings 34, 35, 36 and 37*. In the position shown in Fig. 4, the openings in the inner tube are located to the right of the openings in the outer tube. However, as the wheel 33 is rotated, the openings in the inner tube will successively register with the corresponding openings in the outer tube, that is to say, the opening 34" will register first with the opening 34 and these openings will move out of register and the opening. 35 will then register with theopening 35, and so on, until the opening 37 registers with the opening 37. By this arrangement, it will be seen that the inner tube will be put in communication with the boiler at successive points from the rear to the front thereof as the actuating wheel 33 is moved. If the blow-off cock is open, the mud and sediment within the boiler will be removed therefrom through the inner tube by the successive registerings of the openings. The arrangement of openings is such that each removes the mud immediately adjacent thereto. The action is successive from end to end of the boiler, a little mud being removed through each opening until substantially all is removed. By removing a little mud at a time and successively, it is much easier and more thoroughly removed.

In order to allow the water, mud and sediment to escape through the nipple 23 and the blow-otl' cock from the inner tube 25, the latter is provided with an elongated slot 38 which communicates with the nipple at all adjustments of the tube 25 and allows the escape of mud.

The inner tube 25 is also provided with an elongated slot 39 into which projects a set screw 40 attached to the outer tube. The slot and set screw act as stops to limit the movement of theinner tube in both directions, as is shown, for instance, in Fig. 4,

where the screw is at the left hand end of the slot, in which position all the openings a re closed. The arrangement of the slot and set screw also prevents the inside pipe from blowing out in case of any part becoming broken.

As shown in Fig. 3, each outer tube 15 is rovided at each end thereof with side open- 1l1gS'41 and 42 facing the front and rear portions 13 and 14 respectively, while the inner tube is provided with corresponding openings 41 and 42*. The opening 41 is adapted to register with the opening 41 as is'clearly shown in Fig. 6, and after these openings move out of register and the openings 3 t to 37 have registered with the openings 34 to 37, the corresponding openings 42 and 42 register. As is clearly shown in Fig. 3, this arrangement insures that in firebox boilers, the mud will also be drawn first from the back, then from the sides and finally from the front of the boilers into the blow-off outlet. When the tube 25 has been moved to the extreme left, from the position shown in Fig. 4, the openings can be made to successively register in the reverse order, by again moving the tube 25 back to its original position. The results produced by the movement of the tube in such reverse direction is substantially the same, that. is, the residuary mud or sediment will be removed. a part at a. time, from end to end of the boiler as the inner tube opens into the boiler at various points therealong.

The top of the outer tube has openings 43 and 44 therein spaced longitudinally thereof. The inner tube is likewise provided with corresponding openings 43 and H which are adapted to successively register with the openings 43 and it. This arrangement of openings is also particularly advantageous in connection with firebox boilers such as illustrated in Figs. 2 and 3, when it is desired to clean out the side portions 12 above the devices 5.

mamas By removing the plug 29 and attaching a hose thereto, water may be forced through the tube 25 and by manipulating the hand Wheel 33, the same may be forced through the openings successively from the rear to the front, thereby washing, a little at a time, mud and sediment, which has accumulated on the bottom of the boiler, toward the front where it may be easily removed through the man-hole 4, illustrated in Fig. 1, with out it being necessary to enter the boiler itself to scrape off the mud and scales.

Another advantage of the invention resides in the fact that when all the openings' are closed as shown in Fig. 4, the blowoff cock may be removed or repaired without materially lowering the pressure in the boiler, and without making it necessary to cool the boiler and reduce the pressure there in. It is thought that the general operation of my device and the manner of applying it to boilers will be clear from the above description and needs no further elaboration.

While I have shown and described one embodiment of my invention, it is to be understood that I do not desire to be limited to the details of construction herein shown and described for obvious modifications will be apparent to anyone skilled in the art.

What is claimed is Z'- 1. A combined blow-off and cleaner of the character described, comprising a pair of telescoped tubes having perforations for registration with each other, an outlet coupling connected with the outer tube and communicating with said inner tube when the perforations are in registering or non-registering positions, a T member fitted on the outer end of the inner tube and having a removable plug for permitting access to the inner tube, and a removable closure member in the inner end of said inner tube.

2. A combined blow-oft and cleaner of the character described, comprising a pair of telescoped tubes having perforations for registration with each other, an outlet coupling connected with the outer tube and communicating with said inner tube when the perforations are in registering or nonregistering positions, a T member fitted on the outer end of the inner tube and having a removable plug for permitting access to the inner tube, a removable closure member in the inner end of said inner tube, and means on the outlet coupling and engaged with the T member for moving the inner tube. v

3. A combined blow-off and clean-out device for boilers comprising a pair of telescoped tubes having longitudinally alined perforations, the perforations being disposed with respect to each other to be brought successively one at a time into registration on longitudinal movement of the innermost tube, an outlet coupling connect.-

ed with the outer tube and communicating with said inner tube when the perforations are in registering or non registering position, a T member fitted on the outer end of the inner tube and having a removable plug for permitting access to the inner tube, a removable closure member in the inner end of'said inner tube, a manually operated feed stem rotatably supported by the outlet coupling and having an internally threaded bore, and a feed screw engaged in the threaded bore and connected with the T member.-

4-. A, combined blow-oil and clean-out. device for boilers comprising a pair of telescoped tubes having longitudinally alined perforations, the perforations being disposed with respect to each other to be brought successively one at a time into registration on longitudinal movement of the innermost tube, an outlet coupling connected with the outer tube and communicating with said inner tube when the perforations are in registering or non-registering position, a T member fitted on the outer end of theinner tube and having a removable plug for permitting access to the inner tube, a removable closure member in the inner end of said inner tube, a manually operated feed stem rotatably supported by the outlet coupling and having an internally threaded bore, a feed screw engaged in the threaded bore and connected with the T member, and a stufling box connected with the outlet coupling and slidably receiving the inner tube.

5. A combined blow-off and clean-out device for boilers comprising a pair of telescoped tubes having longitudinally alined perforatioi'is, the perforations being disposed with respect to each other to be brought successively one at a time into registration on longitudinal movement of the innermost tube, an outlet coupling connected with the outer tube and communicating with said inner tube when the perforations are in registering or non-registering position, a T member fitted on the outer end of-the inner tube and having a removable plug for per mitting access to the inner tube, a removable closure member in the inner end of said inner tube, a manually operated feed stem rotatably supported by the outlet coupling and having an internally threaded bore, a feed screw engaged in the threaded bore and connected with the T member, a stutling box connected with the outlet couplin and slidably receiving the inner tube, an a removable closure for the outer tube at its end opposite the end connected with the outlet coupling.

6. A combined blow-odand clean-out device for boilers comprising a pair of telescoped tubes having longitudinally alined perm ittin perforations, the perforations being disposed with respect to each other to be brought successively one at a time into registration on longitudinal movement of the innermost tube, an outlet coupling connected with the outer tube and communicating with said inner tube when the perforations are in registering or non-registering position, a T member fitted on the outer end of the mner tube and having a removable plug for access to the inner tube, a re movable c osure member in the inner end of said tube, a manually operated feed stem rotatably supported by the outlet coupling and having an internally threaded bore, a feed screw engaged in the threaded bore and connected with the T member, a stufling box connected with the outlet coupling and slidably receiving the inner tube, a removable closure for the outer tube at its end opposite the end connected with the outlet coupling, and a detachable nipple carried by the outer coupling.

7. A combined blow-off and clean-out device for boilers comprising a pair of telescoped tubes having longitudinally alined perforations, the perforations being disposed with respect to each other to be brought successively one at a time into registration on longitudinal movement of the innermost tube, an outlet coupling connected with the outer tube and communicating with said inner tube when the perforations are in. registering or non-registering position, a T member fitted on. the outer end of the inner tube and having a removable plug for Jermitting access to the inner tube, a remova le closure member in the inner end of said inner tube, a manually operated feed stem rotatably supported by the outlet coupling and having tin-internally threaded bore, a feed screw engaged in the threaded bore and connected with the T member, a stufling box connected with the outlet coupling and slidably receiving the inner tube, a removable closure for the outer tube at its end opposite the end connected with the outlet coupling, a detachable nipple carried by the outlet coupling, and means carried by one tube and engageable with the other to limit the movement of the inner tube on actuating the stem.

8. A combined blow-otl' and clean-out dc- \'icc for boilers comprising a pair of telescoped tubes having longitudinally alined perforations, the perforations being disposed with respect to each other to be brought successively one at a time into registration on longitudinal movement of the innermost tube, an outlet coupling connected with the outer tube and communicating with said inner tube when the perforations are in registering or non-registering position, a T member fitted on the outer end of the inner tube and having a removable plug for permitting access to the inner tube, a removable closure member in the inner end of said inner tube, a manually operated feed stem rotatably supported by the outlet coupling and having an internally threaded bore, a feed screw engaged in the threaded bore and connected with the T member, a stufling box connected with the outlet coupling and slidably receiving the inner tube, a removable closure for t 10 outer tube at its end opposite the end connected with the outlet cou ling, a detachable nipple carried by the out et coupling, and means carried by one tube and engageable with the other to limit the movement of the inner tube on actuating the stem, the stem and screw being disposed parallel with and at one side of the tubes, and a hand Wheel on said stem.

JESSE GOFF.

' Witnesses:

C. W. Conner,

LEONARD SPANGLER. 

